Gas burner with internal fuel distributor



* June 27, 1950 G. w. FERREL 2,513,087

GAS BURNER WITH INTERNAL FUEL DISTRIBUTOR Filed Sept. 6, 1949 INV-ENTOR.

Patented June 27, 1950 -G.-AS BURNER, wrrn INTERNAL FUEL DISTRIBUTORGerald Wellington Ferrel, Kalamazoo, Mich; Application September- 6,1949, Serial No. 114,213

12 Claims.

T s in entio relates to m rovements in gas burners. v

The main b ec of th s inven ion First, to provide a gas burner of theheating type which is highly efiicient in the utilization of the B. t.u.s of the gas consumed.

Se ond. to. pr vide a. a bu n wh ch may easily installed in varioustypes .of furnaces and boilers and connected to a source of gas supply.

Third, to provide a burner having these advantages in which there is no:so-oalled primary air mixed with the gas prior to. its discharge fromthe burner orifices, and at the same time provides for the admission ofsecondary air or air at the point of discharge of the burner orificesfor an efi'ective air mixture with the gas to provide efiicientcombustion.

Fourth, to provide a gas burner which is of few parts and these partsare readily assembled and do not require adjustment relative to eachother for difierent installations.

Objects relating to details and economies of the invention will appearfrom the description to follow. The invention is defined and pointed outin the claims.

A preferred embodiment of the invention is illustrated in theaccompanying drawing, in which:

Fig. 1 is a fragmentary side elevation of a burner assembly embodying myinvention, partially in vertical section and partially broken away,

certain parts. being shown conventionally.

Fig. 2 an enlarged. fragmentary view mainly in. vertical section.

Fig. 3 is a perspective view of the burner head.

Fig. l is a fragmentary View partially in vertical section of a modifiedform or embodiment of my invention.

The burner of my invention, illustrated in Figs. 1 to 3 inclusive,comprises a body member designated generally by the numeral i and havinga bottom 2 and side wall 3. cylindrical lower portion .4 and anoutwardly flaring upper portionfi desirably of inverted conical shape. Atubular burner head holder member 6 is cast integrally with the bottomand walls described and'has a portion 1 projecting centrally into thechamber formed by the walls and bottom. and also projecting below thebottom to provide a coupling portion & internally threaded to, receivethe ga-ssupply connection 9 which is carried by the. equalizing chambermember Ill which constitutes a, base provided with supporting legs H.

The, burner head l2 isprovided with a cylin:

side wall has a drical upper portion l3 fitting within the upper end ofthe holder in closing engagement with, its] walls. The head member isprovided with a cylindrical inner portion I4 spaced from the upperportion by an annular groove. or recess [5. The

cylindrical portion M is spaced from the wall of the holder to providean annular gas passage It. This is desirably quite restricted to insureeven distribution of gas to the recess I5.

Below the portion M, the head member has a downwardly tapering portionl'l which merges into the portion M and acts to uniformly distrib ute orguide gas to the passage Hi- In this preferred embodiment the upper edgeof the head memberis beveled at l8. The gas delivery ports".

or jet orifices l9 are disposed at an angle and ct to direct the gasoutwardly. The burner body is provided with a plurality of angularlyspaced lon a d air .inl o ni gs 2|! desira ly ar ranged in the plane ofthe discharge ends (lithe je s- With this arra gement th gasis very unimv del ve d abou the burn r h ad and into i A pil t 2.! is convention- 1the burne chamber. ally illustrated.

T a upp v'p p .2 s provided with at outo l" valve 23. with a pressure rulator 24 at the r ar of the v lve 23. nd with a thermost tica ly ctroll d. valve 25, the valve control mechani m ing c nve tion lly ilustrated at It has suitable electrical connections to a thermostatdesirably located in space to be heated. The

pre s re regulator is of imp anc a i is found practical to deliver thegas to. the burner at. at, relatively l w p ssure and i is desirable odeliver it at a uniform pressure. The burner is adapted for use inconnection with gas supply systemsor it may be used in connectionbottled gas. The chamber in is disposed at the.

rear of the re ul r a fur h r serves 0-1 35 vide a uniform delivery ofthe gas to the burner;

One of the featureswhich I wish to particularly" point out is that noprimary air is admitted in" dv nc f he dischar e of the gas into the)burner chamber and consequently there are no, adjustable parts which canbe manipulated by. inexperienced persons to decrease the efiiciency of 1the burner. In use the combustion takes place largely at the top andabove the burner body. An advantage of this is that the burner head.does. not become substantially heatedand there is no accumulation ofcarbon on the head or in the-jet orifices.

In the embodiment shown in Fig. 4, the wall .21 is cylindricalthroughout theburner head holder,

and the air inlet openings are the same as, de-

scribed. The burner head 28 is set into the holder with its face flushwith the upper edge of the holder and the jet orifices 29 are verticalopening at the flat face of the burner head. The head is otherwise thesame as that described. This structure is also effi-cient although thatshown in Figs. 1 to 3 inclusive is preferred by me.

I have illustrated and described my'invention in highly practicalembodiments thereof. I have ;not attempted to illustrate or describeother embodiments or adaptations which I contemplate as it is. believedthat this disclosure will enable those skilled in the art to embody andadapt my invention as may be desired.

Having thus described my invention, what I claim as new and desire to.secure by Letters Patent is:

1. The combination in a gas burner, of a body member comprising a bottomand side wall integral therewith and extending upwardly therefrom, theside wall comprising a lower cylindrical portion and an upper outwardlyflaring portion of inverted conical shape, a tubular burner head supportintegral with and projecting above the bottom centrally of the wall, ablock-like burner head disposed within and having an upper cylindricalportion in supported sealing engagement with the wall of the support,and a lower cylindrical portion concentric with and spaced from thewallof. the support and coacting therewith 3 to provide a restricted annularpassage, said head having an annular groove above said lower cylindricalportion, the inner end of the head having a symmetrical downwardlytapered portion merging at its upper end into the said lower cylindricalportion, the upper edge of the head being beveled and projecting abovethe said support, said head having a plurality of outwardly inclined jetorifices opening at their inner ends to said annular groove and at theirouter ends to said beveled edge, said cylindrical portion of the wallhaving a plurality of angularly spaced horizontally elongated airinlets, the bottomedges of which are in approximately the plane of theupper end of said support.

2. The combination-in a gas burner, of a body 3 member comprising abottom and side wall inte- 1 bottom centrally of the wall, a block-likeburner head disposed within andhaving an upper cylindrical portion insupported sealing engagement provide a restricted annular passage, saidhead having an annular groove above said lower cylindrical portion, saidhead having a plurality of jet orifices opening at their inner ends tosaid annular groove and at their outer ends to the space gral-therewithand extending upwardly theref from, the. side wall comprising a lowercylindrical portion and an upper outwardly flaring portion 3 of invertedconical shape, a tubular burner head support integral with andprojecting above the l with the wall of the support, and a lowercylindrical portion concentric with and spaced from the wallof thesupport and coacting therewith to 4 drical portion in supported sealingengagement with the wall of the support, and a lower cylindrical portionconcentric with and spaced from the wall of the support and coactingtherewith to provide a restricted annular passage, said head having anannular groove above said lower cylindrical portion, said head having aplurality of jet orifices opening at their inner ends to said annulargroove and at their outer ends to the space within said body wall, saidcylindrical portion of the wall having a plurality of angularly spacedair inlets, a chambered base member opening to said support and of adiameter substantially exceeding that of the support, and a gas supplyconnection opening to the bottom of said base member and provided with apressure regulating valve, the connections for the gas supply to theburner head being closed against theadmission of air.

4. The combination in a gas burner, of a body member comprising a bottomand side wall integral therewith and extending upwardly therefrom, theside wall having an upper outwardly flaring upper portion, a centraltubular burner head support projecting above the bottom, a burner headdisposed within said support and having an upper portion in closingrelation to the wall thereof, and a lower portion spaced from the wallof the support and coacting therewith to provide a restricted continuouspassage, said head member having a continuous circumferential grooveabove said lower portion, the head having a downwardly tapered portionmerging at its upper end into the said lower portion spaced from thewall of the burner support, the upper edge of the head being beveled andprojecting above the said support, said head having a plurality of jetorifices opening at their inner ends to said annular groove and at theirouter ends to said beveled edge, said wall having angularly spaced airinlets.

5. The combination in a gas burner, of a body member comprising a bottomand side wall integral therewith and extending upwardly therefrom, acentral tubular burner head support projecting above the bottom, aburner head disposed within said support and having an upper portion Iin closing relation to the wall thereof, and a lower portion spaced fromthe wall of the support and coacting therewith to provide a restrictedcontinuous passage, said head member having a continuous circumferentialgroove above said lower portion, said head having a plurality of. jetorifices opening at their inner ends to said annular groove and at theirouter ends to the space within said body wall, said wall havingangularly spaced air inlets.

6. The combination in a gas burner, of a body member comprising a bottomand side wall integral therewith and extending upwardly therefrom, acentral tubular burner head support projecting above the bottom, aburner head disposed within said support and having an upper portion inclosing relation to the wall thereof, and a lower portion spaced fromthe wall of the support and coacting therewith to provide a restrictedcontinuous passage, said head member having a continuous circumferentialgroove above said lower portion, said head having a plurality of jetoriflees opening at their inner ends to said annular groove and at theirouter ends to the space within said body wall, said wall havingangularly spaced air inlets, a chambered base member opening to saidsupport and of a diameter substantially exceeding that of the support,and a gas supply connection opening to the bottom of said base memberand provided with a pressure regulating valve, the connections for thegas supply to the burner head being closed against the admission of air.

7. The combination in a gas burner, of a body member comprising a bottomand side wall extending upwardly therefrom and having a lowercylindrical portion and an upwardly outwardly flaring upper portion, atubular burner head support member, a burner head disposed within saidsupport and having an upper portion coaoting with the wall of thesupport to close the support, said head having an annular recess andhaving a portion below the recess spaced from the wall -of the supportto provide a passage opening to the recess, a plurality of angularlyspaced jet orifices opening to said recess and within said body memberwall, the body member having air inlet openings in a plane adjacent theplane of the discharge of the jet orifices, and a gas supply connectionto said burner including a chamber and a pressure regulating valvearranged in advance of said chamber. 1

8. The combination in a gas burner, of a body member comprising a bottomand side wall extending upwardly therefrom, a tubular burner headsupport member, a burner head disposed within said support and having anupper portion coacting with the wall of the support to close thesupport, said head having an annular recess and having a portion belowthe recess spaced from the wall of the support to provide a passageopening to the recess, a plurality of angularly spaced jet orificesopening to said recess and within said body member wall, the body memberhaving air inlet openings, and a gas supply connection to said burner.

9. The combination in a gas burner, of a body member comprising a bottomand. side Wall extending therefrom, a central hollow burner head supportprojecting above the bottom, a burner head member disposed within andhaving an upper portion in closing relation to the wall of the support,and a lower portion concentric with and spaced from the wall of thesupport and coacting therewith to provide a restricted passage, saidhead member having an annular recess between said upper and lowerportions, the inner end of the head having a downwardly tapered portionmerging at its upper end into the said lower portion spaced from thewall of the burner support, said head having a plurality of jet orificesopening at their inner ends to said recess, the side wall having aplurality of angularly spaced air inlets in surrounding relation to theburner head support, and a gas supply connection for said burner, theconnections for the gas supply to the burner head support being closedagainst the admission of air.

10. The combination in a gas burner, of a body member comprising abottom and side wall extending therefrom, a central hollow burner head.support projecting above the bottom, a burner head member disposedwithin and having an upper portion in closing relation to the wall ofthe support, and a lower portion concentric with and spaced from thewall of the support and coacting therewith to provide a restrictedpassage, said head member having an annular recess between said upperand lower portions, said head having a plurality of jet orifices openingat their inner ends to said recess and within said body member wall, theside wall having air inlets in surrounding relation to the burner headsupport, and a gas supply connection for said burner, the connectionsfor the gas supply to the burner head support being closed against theadmission of air.

11. The combination in a gas burner, of a body member comprising abottom and side wall extending therefrom, a central hollow burner headsupport projecting above the bottom, a burner head member disposedwithin and having an upper portion in closing relation to the wall ofthe support, and a lower portion concentric with and spaced from thewall of the support and coacting therewith to provide a restrictedpassage, said head member having an annular recess between said upperand lower portions, said head having a plurality of jet orifices openingat their inner ends to said recess and within said body member wall, theside wall having air inlets in surrounding relation to the burner headsupport, and a gas supply connection for said burner provided with apressure regulating valve, the connections for the gas supply to theburner head support being closed against the admission of air.

12. The combination in a gas burner, of a body member comprising abottom and side wall extending therefrom, a central hollow burner headsupport projecting above the bottom, a burner head member disposedwithin and having an upper portion in closing relation to the wall ofthe support, and a lower portion concentric with and spaced from thewall of the support and coacting therewith to provide a restrictedpassage, said head member having an annular recess between said upperand lower portions, said head having a plurality of jet orifices openingat their inner ends to said recess and within said body member wall, theside wall having air inlets in surrounding relation to the burner headsupport.

GERALD WELLINGTON FERREL.

REFERENCES CITED The following references are of record in the file ofthis patent:

